• Care Free Pumping of Off Gassing Liquids: Municipalities regularly use Sodium Hypochlorite (“Hypo”) to disinfect drinking water and the food industry uses Hypo to prevent bacterial contamination. When pumped, Hypo off gases, vapour locking a diaphragm pump’s chamber resulting in additional degassing valves. Often pumps are set to “over-dose” to compensate for the loss of performance leading to increased chemical usage. Hose pumps are a well proven solution and also address the associated crystallisation issues.

• Eliminate Abrasive Wear Costs: Lime or Kalkmilch is a very common pH adjustment chemical, used in water treatment, industrial waste remediation and process acidity control. Lime’s fine particles are highly abrasive and cause severe stator and valve wear resulting in high pump ownership costs. Verderflex has many years experience solving this pumping problem and peristaltic pumps are accepted as the proven valve free solution to pump lime, the Dura 5 & 7 now bring this proven performance to lower flow rates.

• Crystallisation: Many reagents crystallise when the metered chemical flows are interrupted coating the seats result in a loss of performance whereas the abrasion resistant Dura 5 & 7 pumps maintain flow rates.

• No Tube Re-tensioning: Some peristaltic pumps use continuous lengths of non re-enforced tubes which require re-tensioning after initial installation. The long life heavy duty Dura 5 & 7 hoses are fit and forget.

• True Dry Priming:Dura 5 and Dura 7 dry prime to 9.5m of water compared to sub 5m wet-primed lifts associated with diaphragm pumps. The Dura 5 and 7 now eliminate the need for pre-wetting and priming in lower volume chemical feed systems.

• High Margin of Safety and Secure Clamping: The heart of the Dura 5 & 7 is the re-enforced hose with a burst pressure in excess of 80 Bar (1150 PSI) unlike non-re-enforced tubes that can easily burst and rely on crimped connections unlike the Dura 5 and 7’s high compression taper fit clamping system.

• Maintenance Simplicity: Only the easy to change hose is in contact with the pumped liquid. Downtime is minimised dramatically with infrequent servicing and hose lives in the thousands of hours. Simple on site changeovers can be made by semi-skilled staff, lowering the total metering solution ownership cost.

• Simple User Controls: Hose pumps need no complex local keypads. Dura 5 & 7 pumps can be remotely controlled by inverters eliminating operator confusion and maintaining control system simplicity. These inverters can be the familiar site standard brand further simplifying the control system support requirements.

• Scalable Performance: The Dura 5 and 7 have the same common casing and mounting frames as the Dura 10. Should system demands change, flow rates are easily scaled up on site or down by replacing the hose and a few standard components.

Find dealers worldwide

Talk to a Pump Expert

Talk to a Pump Expert

Name*

Company

Email*

Phone*

Short description

Country*

Consent

I agree to receive information from verderflex.com about products and services. Verderflex.com is committed to protecting and respecting your privacy, By clicking submit, you agree with our privacy statement and allow us to store your data. We only store your data to communicate with you regarding our services. You may unsubscribe from these services at any time.